Port 25 closing?

From: Ashley M. Kirchner (ashley_at_pcraft.com)
Date: 03/08/05

  • Next message: Scot L. Harris: "Re: Port 25 closing?" 
    Date: Tue, 08 Mar 2005 13:11:39 -0700
To: For users of Fedora Core releases <fedora-list@redhat.com>

        This is slightly OT, but ti's been driving me nuts, so I'm hoping
    someone here might have some suggestions as to what to look for here. I
    have one Windows XP (SP2) machine that seems to randomly prevent
    connections to our mail server via port 25. Our internal network
    connects to our mail server, which is outside of our firewall and only
    this one machine is having this problem. For no apparent reason at all
    it will suddenly deny all connections made to the mail server through
    port 25 (it can still RECEIVE e-mail since that goes over secure IMAP
    port, but it can't send.) I can log onto the firewall, and everything
    works as far as opening a connection to the mail server. I can get onto
    a different machine on the network, and connect to the mail server just
    fine, so I know it's not a firewall issue. It's just this ONE XP
    machine that's experiencing this problem. And it only started happening
    after installing SP2. Looking in Windows' firewall log, there's nothing
    that points to port 25 being blocked. I can't telnet (to anything on
    port 25, anywhere) from that machine, can't send e-mail, nothing. The
    solution? Reboot the machine, and suddenly everything works again. So,
    what gives? 

    -- 
W | I haven't lost my mind; it's backed up on tape somewhere.
  +--------------------------------------------------------------------
  Ashley M. Kirchner <mailto:ashley@pcraft.com>   .   303.442.6410 x130
  IT Director / SysAdmin / Websmith             .     800.441.3873 x130
  Photo Craft Laboratories, Inc.            .     3550 Arapahoe Ave. #6
  http://www.pcraft.com ..... .  .    .       Boulder, CO 80303, U.S.A.
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  • Next message: Scot L. Harris: "Re: Port 25 closing?"

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